Solution: This happens if data encryption is enabled. Go to Wipe > Format Data (typing ‘yes’). Then reboot recovery. Warning: This wipes all media from internal storage.
Before diving into installation, let’s decode the filename: Twrp-3.0.2-1-sm-t560.tar
For users who prefer command-line control, ADB sideload allows pushing and installing a zip file directly from a PC with adb sideload filename.zip. This works even if MTP is not functioning. Solution: This happens if data encryption is enabled
TWRP is open-source (GPLv3 + Apache 2.0 for UI). This .tar is a distribution of a derivative work. Flashing it requires physical access to the device – do not use on stolen or locked devices. Rooting/custom recovery may violate enterprise policies, banking app security models, and Google's SafetyNet attestation (now replaced by Play Integrity). For users who prefer command-line control, ADB sideload